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    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
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<body>
    <ul>
        <li>咖啡
            <ul>
                <li>摩卡</li>
                <li>蓝山</li>
            </ul>
        </li>
        <li>茶
            <ul>
                <li>红茶</li>
                <li>绿茶
                    <ol>
                        <li>龙井</li>
                        <li>碧螺春</li>
                    </ol>
                </li>
            </ul>
        </li>
        <li>牛奶</li>
    </ul>
</body>
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